IPv4 Subnet Calculator
Enter an IP with a CIDR prefix or a subnet mask to see its network, broadcast, host range, and host count. You can also split the network into smaller subnets.
private IP (RFC 1918)10.3.246.0/23
network10.3.246.0/23
broadcast10.3.247.255
first host10.3.246.1
last host10.3.247.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.3.246.0/23
address00001010.00000011.11110110.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.00000011.11110110.00000000
broadcast00001010.00000011.11110111.11111111
green = network part, grey = host part
hex0x0a03f600
decimal168031744
reverse dns0.246.3.10.in-addr.arpa
ipv4-mapped::ffff:a03:f600
/23 split into /31 · 256 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.3.246.0/31 | 10.3.246.0 – 10.3.246.1 | 10.3.246.1 |
| 2 | 10.3.246.2/31 | 10.3.246.2 – 10.3.246.3 | 10.3.246.3 |
| 3 | 10.3.246.4/31 | 10.3.246.4 – 10.3.246.5 | 10.3.246.5 |
| 4 | 10.3.246.6/31 | 10.3.246.6 – 10.3.246.7 | 10.3.246.7 |
| 5 | 10.3.246.8/31 | 10.3.246.8 – 10.3.246.9 | 10.3.246.9 |
| 6 | 10.3.246.10/31 | 10.3.246.10 – 10.3.246.11 | 10.3.246.11 |
| 7 | 10.3.246.12/31 | 10.3.246.12 – 10.3.246.13 | 10.3.246.13 |
| 8 | 10.3.246.14/31 | 10.3.246.14 – 10.3.246.15 | 10.3.246.15 |
| 9 | 10.3.246.16/31 | 10.3.246.16 – 10.3.246.17 | 10.3.246.17 |
| 10 | 10.3.246.18/31 | 10.3.246.18 – 10.3.246.19 | 10.3.246.19 |
| 11 | 10.3.246.20/31 | 10.3.246.20 – 10.3.246.21 | 10.3.246.21 |
| 12 | 10.3.246.22/31 | 10.3.246.22 – 10.3.246.23 | 10.3.246.23 |
| 13 | 10.3.246.24/31 | 10.3.246.24 – 10.3.246.25 | 10.3.246.25 |
| 14 | 10.3.246.26/31 | 10.3.246.26 – 10.3.246.27 | 10.3.246.27 |
| 15 | 10.3.246.28/31 | 10.3.246.28 – 10.3.246.29 | 10.3.246.29 |
| 16 | 10.3.246.30/31 | 10.3.246.30 – 10.3.246.31 | 10.3.246.31 |
| 17 | 10.3.246.32/31 | 10.3.246.32 – 10.3.246.33 | 10.3.246.33 |
| 18 | 10.3.246.34/31 | 10.3.246.34 – 10.3.246.35 | 10.3.246.35 |
| 19 | 10.3.246.36/31 | 10.3.246.36 – 10.3.246.37 | 10.3.246.37 |
| 20 | 10.3.246.38/31 | 10.3.246.38 – 10.3.246.39 | 10.3.246.39 |
| 21 | 10.3.246.40/31 | 10.3.246.40 – 10.3.246.41 | 10.3.246.41 |
| 22 | 10.3.246.42/31 | 10.3.246.42 – 10.3.246.43 | 10.3.246.43 |
| 23 | 10.3.246.44/31 | 10.3.246.44 – 10.3.246.45 | 10.3.246.45 |
| 24 | 10.3.246.46/31 | 10.3.246.46 – 10.3.246.47 | 10.3.246.47 |
| 25 | 10.3.246.48/31 | 10.3.246.48 – 10.3.246.49 | 10.3.246.49 |
| 26 | 10.3.246.50/31 | 10.3.246.50 – 10.3.246.51 | 10.3.246.51 |
| 27 | 10.3.246.52/31 | 10.3.246.52 – 10.3.246.53 | 10.3.246.53 |
| 28 | 10.3.246.54/31 | 10.3.246.54 – 10.3.246.55 | 10.3.246.55 |
| 29 | 10.3.246.56/31 | 10.3.246.56 – 10.3.246.57 | 10.3.246.57 |
| 30 | 10.3.246.58/31 | 10.3.246.58 – 10.3.246.59 | 10.3.246.59 |
| 31 | 10.3.246.60/31 | 10.3.246.60 – 10.3.246.61 | 10.3.246.61 |
| 32 | 10.3.246.62/31 | 10.3.246.62 – 10.3.246.63 | 10.3.246.63 |
| 33 | 10.3.246.64/31 | 10.3.246.64 – 10.3.246.65 | 10.3.246.65 |
| 34 | 10.3.246.66/31 | 10.3.246.66 – 10.3.246.67 | 10.3.246.67 |
| 35 | 10.3.246.68/31 | 10.3.246.68 – 10.3.246.69 | 10.3.246.69 |
| 36 | 10.3.246.70/31 | 10.3.246.70 – 10.3.246.71 | 10.3.246.71 |
| 37 | 10.3.246.72/31 | 10.3.246.72 – 10.3.246.73 | 10.3.246.73 |
| 38 | 10.3.246.74/31 | 10.3.246.74 – 10.3.246.75 | 10.3.246.75 |
| 39 | 10.3.246.76/31 | 10.3.246.76 – 10.3.246.77 | 10.3.246.77 |
| 40 | 10.3.246.78/31 | 10.3.246.78 – 10.3.246.79 | 10.3.246.79 |
| 41 | 10.3.246.80/31 | 10.3.246.80 – 10.3.246.81 | 10.3.246.81 |
| 42 | 10.3.246.82/31 | 10.3.246.82 – 10.3.246.83 | 10.3.246.83 |
| 43 | 10.3.246.84/31 | 10.3.246.84 – 10.3.246.85 | 10.3.246.85 |
| 44 | 10.3.246.86/31 | 10.3.246.86 – 10.3.246.87 | 10.3.246.87 |
| 45 | 10.3.246.88/31 | 10.3.246.88 – 10.3.246.89 | 10.3.246.89 |
| 46 | 10.3.246.90/31 | 10.3.246.90 – 10.3.246.91 | 10.3.246.91 |
| 47 | 10.3.246.92/31 | 10.3.246.92 – 10.3.246.93 | 10.3.246.93 |
| 48 | 10.3.246.94/31 | 10.3.246.94 – 10.3.246.95 | 10.3.246.95 |
| 49 | 10.3.246.96/31 | 10.3.246.96 – 10.3.246.97 | 10.3.246.97 |
| 50 | 10.3.246.98/31 | 10.3.246.98 – 10.3.246.99 | 10.3.246.99 |
| 51 | 10.3.246.100/31 | 10.3.246.100 – 10.3.246.101 | 10.3.246.101 |
| 52 | 10.3.246.102/31 | 10.3.246.102 – 10.3.246.103 | 10.3.246.103 |
| 53 | 10.3.246.104/31 | 10.3.246.104 – 10.3.246.105 | 10.3.246.105 |
| 54 | 10.3.246.106/31 | 10.3.246.106 – 10.3.246.107 | 10.3.246.107 |
| 55 | 10.3.246.108/31 | 10.3.246.108 – 10.3.246.109 | 10.3.246.109 |
| 56 | 10.3.246.110/31 | 10.3.246.110 – 10.3.246.111 | 10.3.246.111 |
| 57 | 10.3.246.112/31 | 10.3.246.112 – 10.3.246.113 | 10.3.246.113 |
| 58 | 10.3.246.114/31 | 10.3.246.114 – 10.3.246.115 | 10.3.246.115 |
| 59 | 10.3.246.116/31 | 10.3.246.116 – 10.3.246.117 | 10.3.246.117 |
| 60 | 10.3.246.118/31 | 10.3.246.118 – 10.3.246.119 | 10.3.246.119 |
| 61 | 10.3.246.120/31 | 10.3.246.120 – 10.3.246.121 | 10.3.246.121 |
| 62 | 10.3.246.122/31 | 10.3.246.122 – 10.3.246.123 | 10.3.246.123 |
| 63 | 10.3.246.124/31 | 10.3.246.124 – 10.3.246.125 | 10.3.246.125 |
| 64 | 10.3.246.126/31 | 10.3.246.126 – 10.3.246.127 | 10.3.246.127 |
| 65 | 10.3.246.128/31 | 10.3.246.128 – 10.3.246.129 | 10.3.246.129 |
| 66 | 10.3.246.130/31 | 10.3.246.130 – 10.3.246.131 | 10.3.246.131 |
| 67 | 10.3.246.132/31 | 10.3.246.132 – 10.3.246.133 | 10.3.246.133 |
| 68 | 10.3.246.134/31 | 10.3.246.134 – 10.3.246.135 | 10.3.246.135 |
| 69 | 10.3.246.136/31 | 10.3.246.136 – 10.3.246.137 | 10.3.246.137 |
| 70 | 10.3.246.138/31 | 10.3.246.138 – 10.3.246.139 | 10.3.246.139 |
| 71 | 10.3.246.140/31 | 10.3.246.140 – 10.3.246.141 | 10.3.246.141 |
| 72 | 10.3.246.142/31 | 10.3.246.142 – 10.3.246.143 | 10.3.246.143 |
| 73 | 10.3.246.144/31 | 10.3.246.144 – 10.3.246.145 | 10.3.246.145 |
| 74 | 10.3.246.146/31 | 10.3.246.146 – 10.3.246.147 | 10.3.246.147 |
| 75 | 10.3.246.148/31 | 10.3.246.148 – 10.3.246.149 | 10.3.246.149 |
| 76 | 10.3.246.150/31 | 10.3.246.150 – 10.3.246.151 | 10.3.246.151 |
| 77 | 10.3.246.152/31 | 10.3.246.152 – 10.3.246.153 | 10.3.246.153 |
| 78 | 10.3.246.154/31 | 10.3.246.154 – 10.3.246.155 | 10.3.246.155 |
| 79 | 10.3.246.156/31 | 10.3.246.156 – 10.3.246.157 | 10.3.246.157 |
| 80 | 10.3.246.158/31 | 10.3.246.158 – 10.3.246.159 | 10.3.246.159 |
| 81 | 10.3.246.160/31 | 10.3.246.160 – 10.3.246.161 | 10.3.246.161 |
| 82 | 10.3.246.162/31 | 10.3.246.162 – 10.3.246.163 | 10.3.246.163 |
| 83 | 10.3.246.164/31 | 10.3.246.164 – 10.3.246.165 | 10.3.246.165 |
| 84 | 10.3.246.166/31 | 10.3.246.166 – 10.3.246.167 | 10.3.246.167 |
| 85 | 10.3.246.168/31 | 10.3.246.168 – 10.3.246.169 | 10.3.246.169 |
| 86 | 10.3.246.170/31 | 10.3.246.170 – 10.3.246.171 | 10.3.246.171 |
| 87 | 10.3.246.172/31 | 10.3.246.172 – 10.3.246.173 | 10.3.246.173 |
| 88 | 10.3.246.174/31 | 10.3.246.174 – 10.3.246.175 | 10.3.246.175 |
| 89 | 10.3.246.176/31 | 10.3.246.176 – 10.3.246.177 | 10.3.246.177 |
| 90 | 10.3.246.178/31 | 10.3.246.178 – 10.3.246.179 | 10.3.246.179 |
| 91 | 10.3.246.180/31 | 10.3.246.180 – 10.3.246.181 | 10.3.246.181 |
| 92 | 10.3.246.182/31 | 10.3.246.182 – 10.3.246.183 | 10.3.246.183 |
| 93 | 10.3.246.184/31 | 10.3.246.184 – 10.3.246.185 | 10.3.246.185 |
| 94 | 10.3.246.186/31 | 10.3.246.186 – 10.3.246.187 | 10.3.246.187 |
| 95 | 10.3.246.188/31 | 10.3.246.188 – 10.3.246.189 | 10.3.246.189 |
| 96 | 10.3.246.190/31 | 10.3.246.190 – 10.3.246.191 | 10.3.246.191 |
| 97 | 10.3.246.192/31 | 10.3.246.192 – 10.3.246.193 | 10.3.246.193 |
| 98 | 10.3.246.194/31 | 10.3.246.194 – 10.3.246.195 | 10.3.246.195 |
| 99 | 10.3.246.196/31 | 10.3.246.196 – 10.3.246.197 | 10.3.246.197 |
| 100 | 10.3.246.198/31 | 10.3.246.198 – 10.3.246.199 | 10.3.246.199 |
| 101 | 10.3.246.200/31 | 10.3.246.200 – 10.3.246.201 | 10.3.246.201 |
| 102 | 10.3.246.202/31 | 10.3.246.202 – 10.3.246.203 | 10.3.246.203 |
| 103 | 10.3.246.204/31 | 10.3.246.204 – 10.3.246.205 | 10.3.246.205 |
| 104 | 10.3.246.206/31 | 10.3.246.206 – 10.3.246.207 | 10.3.246.207 |
| 105 | 10.3.246.208/31 | 10.3.246.208 – 10.3.246.209 | 10.3.246.209 |
| 106 | 10.3.246.210/31 | 10.3.246.210 – 10.3.246.211 | 10.3.246.211 |
| 107 | 10.3.246.212/31 | 10.3.246.212 – 10.3.246.213 | 10.3.246.213 |
| 108 | 10.3.246.214/31 | 10.3.246.214 – 10.3.246.215 | 10.3.246.215 |
| 109 | 10.3.246.216/31 | 10.3.246.216 – 10.3.246.217 | 10.3.246.217 |
| 110 | 10.3.246.218/31 | 10.3.246.218 – 10.3.246.219 | 10.3.246.219 |
| 111 | 10.3.246.220/31 | 10.3.246.220 – 10.3.246.221 | 10.3.246.221 |
| 112 | 10.3.246.222/31 | 10.3.246.222 – 10.3.246.223 | 10.3.246.223 |
| 113 | 10.3.246.224/31 | 10.3.246.224 – 10.3.246.225 | 10.3.246.225 |
| 114 | 10.3.246.226/31 | 10.3.246.226 – 10.3.246.227 | 10.3.246.227 |
| 115 | 10.3.246.228/31 | 10.3.246.228 – 10.3.246.229 | 10.3.246.229 |
| 116 | 10.3.246.230/31 | 10.3.246.230 – 10.3.246.231 | 10.3.246.231 |
| 117 | 10.3.246.232/31 | 10.3.246.232 – 10.3.246.233 | 10.3.246.233 |
| 118 | 10.3.246.234/31 | 10.3.246.234 – 10.3.246.235 | 10.3.246.235 |
| 119 | 10.3.246.236/31 | 10.3.246.236 – 10.3.246.237 | 10.3.246.237 |
| 120 | 10.3.246.238/31 | 10.3.246.238 – 10.3.246.239 | 10.3.246.239 |
| 121 | 10.3.246.240/31 | 10.3.246.240 – 10.3.246.241 | 10.3.246.241 |
| 122 | 10.3.246.242/31 | 10.3.246.242 – 10.3.246.243 | 10.3.246.243 |
| 123 | 10.3.246.244/31 | 10.3.246.244 – 10.3.246.245 | 10.3.246.245 |
| 124 | 10.3.246.246/31 | 10.3.246.246 – 10.3.246.247 | 10.3.246.247 |
| 125 | 10.3.246.248/31 | 10.3.246.248 – 10.3.246.249 | 10.3.246.249 |
| 126 | 10.3.246.250/31 | 10.3.246.250 – 10.3.246.251 | 10.3.246.251 |
| 127 | 10.3.246.252/31 | 10.3.246.252 – 10.3.246.253 | 10.3.246.253 |
| 128 | 10.3.246.254/31 | 10.3.246.254 – 10.3.246.255 | 10.3.246.255 |
| 129 | 10.3.247.0/31 | 10.3.247.0 – 10.3.247.1 | 10.3.247.1 |
| 130 | 10.3.247.2/31 | 10.3.247.2 – 10.3.247.3 | 10.3.247.3 |
| 131 | 10.3.247.4/31 | 10.3.247.4 – 10.3.247.5 | 10.3.247.5 |
| 132 | 10.3.247.6/31 | 10.3.247.6 – 10.3.247.7 | 10.3.247.7 |
| 133 | 10.3.247.8/31 | 10.3.247.8 – 10.3.247.9 | 10.3.247.9 |
| 134 | 10.3.247.10/31 | 10.3.247.10 – 10.3.247.11 | 10.3.247.11 |
| 135 | 10.3.247.12/31 | 10.3.247.12 – 10.3.247.13 | 10.3.247.13 |
| 136 | 10.3.247.14/31 | 10.3.247.14 – 10.3.247.15 | 10.3.247.15 |
| 137 | 10.3.247.16/31 | 10.3.247.16 – 10.3.247.17 | 10.3.247.17 |
| 138 | 10.3.247.18/31 | 10.3.247.18 – 10.3.247.19 | 10.3.247.19 |
| 139 | 10.3.247.20/31 | 10.3.247.20 – 10.3.247.21 | 10.3.247.21 |
| 140 | 10.3.247.22/31 | 10.3.247.22 – 10.3.247.23 | 10.3.247.23 |
| 141 | 10.3.247.24/31 | 10.3.247.24 – 10.3.247.25 | 10.3.247.25 |
| 142 | 10.3.247.26/31 | 10.3.247.26 – 10.3.247.27 | 10.3.247.27 |
| 143 | 10.3.247.28/31 | 10.3.247.28 – 10.3.247.29 | 10.3.247.29 |
| 144 | 10.3.247.30/31 | 10.3.247.30 – 10.3.247.31 | 10.3.247.31 |
| 145 | 10.3.247.32/31 | 10.3.247.32 – 10.3.247.33 | 10.3.247.33 |
| 146 | 10.3.247.34/31 | 10.3.247.34 – 10.3.247.35 | 10.3.247.35 |
| 147 | 10.3.247.36/31 | 10.3.247.36 – 10.3.247.37 | 10.3.247.37 |
| 148 | 10.3.247.38/31 | 10.3.247.38 – 10.3.247.39 | 10.3.247.39 |
| 149 | 10.3.247.40/31 | 10.3.247.40 – 10.3.247.41 | 10.3.247.41 |
| 150 | 10.3.247.42/31 | 10.3.247.42 – 10.3.247.43 | 10.3.247.43 |
| 151 | 10.3.247.44/31 | 10.3.247.44 – 10.3.247.45 | 10.3.247.45 |
| 152 | 10.3.247.46/31 | 10.3.247.46 – 10.3.247.47 | 10.3.247.47 |
| 153 | 10.3.247.48/31 | 10.3.247.48 – 10.3.247.49 | 10.3.247.49 |
| 154 | 10.3.247.50/31 | 10.3.247.50 – 10.3.247.51 | 10.3.247.51 |
| 155 | 10.3.247.52/31 | 10.3.247.52 – 10.3.247.53 | 10.3.247.53 |
| 156 | 10.3.247.54/31 | 10.3.247.54 – 10.3.247.55 | 10.3.247.55 |
| 157 | 10.3.247.56/31 | 10.3.247.56 – 10.3.247.57 | 10.3.247.57 |
| 158 | 10.3.247.58/31 | 10.3.247.58 – 10.3.247.59 | 10.3.247.59 |
| 159 | 10.3.247.60/31 | 10.3.247.60 – 10.3.247.61 | 10.3.247.61 |
| 160 | 10.3.247.62/31 | 10.3.247.62 – 10.3.247.63 | 10.3.247.63 |
| 161 | 10.3.247.64/31 | 10.3.247.64 – 10.3.247.65 | 10.3.247.65 |
| 162 | 10.3.247.66/31 | 10.3.247.66 – 10.3.247.67 | 10.3.247.67 |
| 163 | 10.3.247.68/31 | 10.3.247.68 – 10.3.247.69 | 10.3.247.69 |
| 164 | 10.3.247.70/31 | 10.3.247.70 – 10.3.247.71 | 10.3.247.71 |
| 165 | 10.3.247.72/31 | 10.3.247.72 – 10.3.247.73 | 10.3.247.73 |
| 166 | 10.3.247.74/31 | 10.3.247.74 – 10.3.247.75 | 10.3.247.75 |
| 167 | 10.3.247.76/31 | 10.3.247.76 – 10.3.247.77 | 10.3.247.77 |
| 168 | 10.3.247.78/31 | 10.3.247.78 – 10.3.247.79 | 10.3.247.79 |
| 169 | 10.3.247.80/31 | 10.3.247.80 – 10.3.247.81 | 10.3.247.81 |
| 170 | 10.3.247.82/31 | 10.3.247.82 – 10.3.247.83 | 10.3.247.83 |
| 171 | 10.3.247.84/31 | 10.3.247.84 – 10.3.247.85 | 10.3.247.85 |
| 172 | 10.3.247.86/31 | 10.3.247.86 – 10.3.247.87 | 10.3.247.87 |
| 173 | 10.3.247.88/31 | 10.3.247.88 – 10.3.247.89 | 10.3.247.89 |
| 174 | 10.3.247.90/31 | 10.3.247.90 – 10.3.247.91 | 10.3.247.91 |
| 175 | 10.3.247.92/31 | 10.3.247.92 – 10.3.247.93 | 10.3.247.93 |
| 176 | 10.3.247.94/31 | 10.3.247.94 – 10.3.247.95 | 10.3.247.95 |
| 177 | 10.3.247.96/31 | 10.3.247.96 – 10.3.247.97 | 10.3.247.97 |
| 178 | 10.3.247.98/31 | 10.3.247.98 – 10.3.247.99 | 10.3.247.99 |
| 179 | 10.3.247.100/31 | 10.3.247.100 – 10.3.247.101 | 10.3.247.101 |
| 180 | 10.3.247.102/31 | 10.3.247.102 – 10.3.247.103 | 10.3.247.103 |
| 181 | 10.3.247.104/31 | 10.3.247.104 – 10.3.247.105 | 10.3.247.105 |
| 182 | 10.3.247.106/31 | 10.3.247.106 – 10.3.247.107 | 10.3.247.107 |
| 183 | 10.3.247.108/31 | 10.3.247.108 – 10.3.247.109 | 10.3.247.109 |
| 184 | 10.3.247.110/31 | 10.3.247.110 – 10.3.247.111 | 10.3.247.111 |
| 185 | 10.3.247.112/31 | 10.3.247.112 – 10.3.247.113 | 10.3.247.113 |
| 186 | 10.3.247.114/31 | 10.3.247.114 – 10.3.247.115 | 10.3.247.115 |
| 187 | 10.3.247.116/31 | 10.3.247.116 – 10.3.247.117 | 10.3.247.117 |
| 188 | 10.3.247.118/31 | 10.3.247.118 – 10.3.247.119 | 10.3.247.119 |
| 189 | 10.3.247.120/31 | 10.3.247.120 – 10.3.247.121 | 10.3.247.121 |
| 190 | 10.3.247.122/31 | 10.3.247.122 – 10.3.247.123 | 10.3.247.123 |
| 191 | 10.3.247.124/31 | 10.3.247.124 – 10.3.247.125 | 10.3.247.125 |
| 192 | 10.3.247.126/31 | 10.3.247.126 – 10.3.247.127 | 10.3.247.127 |
| 193 | 10.3.247.128/31 | 10.3.247.128 – 10.3.247.129 | 10.3.247.129 |
| 194 | 10.3.247.130/31 | 10.3.247.130 – 10.3.247.131 | 10.3.247.131 |
| 195 | 10.3.247.132/31 | 10.3.247.132 – 10.3.247.133 | 10.3.247.133 |
| 196 | 10.3.247.134/31 | 10.3.247.134 – 10.3.247.135 | 10.3.247.135 |
| 197 | 10.3.247.136/31 | 10.3.247.136 – 10.3.247.137 | 10.3.247.137 |
| 198 | 10.3.247.138/31 | 10.3.247.138 – 10.3.247.139 | 10.3.247.139 |
| 199 | 10.3.247.140/31 | 10.3.247.140 – 10.3.247.141 | 10.3.247.141 |
| 200 | 10.3.247.142/31 | 10.3.247.142 – 10.3.247.143 | 10.3.247.143 |
| 201 | 10.3.247.144/31 | 10.3.247.144 – 10.3.247.145 | 10.3.247.145 |
| 202 | 10.3.247.146/31 | 10.3.247.146 – 10.3.247.147 | 10.3.247.147 |
| 203 | 10.3.247.148/31 | 10.3.247.148 – 10.3.247.149 | 10.3.247.149 |
| 204 | 10.3.247.150/31 | 10.3.247.150 – 10.3.247.151 | 10.3.247.151 |
| 205 | 10.3.247.152/31 | 10.3.247.152 – 10.3.247.153 | 10.3.247.153 |
| 206 | 10.3.247.154/31 | 10.3.247.154 – 10.3.247.155 | 10.3.247.155 |
| 207 | 10.3.247.156/31 | 10.3.247.156 – 10.3.247.157 | 10.3.247.157 |
| 208 | 10.3.247.158/31 | 10.3.247.158 – 10.3.247.159 | 10.3.247.159 |
| 209 | 10.3.247.160/31 | 10.3.247.160 – 10.3.247.161 | 10.3.247.161 |
| 210 | 10.3.247.162/31 | 10.3.247.162 – 10.3.247.163 | 10.3.247.163 |
| 211 | 10.3.247.164/31 | 10.3.247.164 – 10.3.247.165 | 10.3.247.165 |
| 212 | 10.3.247.166/31 | 10.3.247.166 – 10.3.247.167 | 10.3.247.167 |
| 213 | 10.3.247.168/31 | 10.3.247.168 – 10.3.247.169 | 10.3.247.169 |
| 214 | 10.3.247.170/31 | 10.3.247.170 – 10.3.247.171 | 10.3.247.171 |
| 215 | 10.3.247.172/31 | 10.3.247.172 – 10.3.247.173 | 10.3.247.173 |
| 216 | 10.3.247.174/31 | 10.3.247.174 – 10.3.247.175 | 10.3.247.175 |
| 217 | 10.3.247.176/31 | 10.3.247.176 – 10.3.247.177 | 10.3.247.177 |
| 218 | 10.3.247.178/31 | 10.3.247.178 – 10.3.247.179 | 10.3.247.179 |
| 219 | 10.3.247.180/31 | 10.3.247.180 – 10.3.247.181 | 10.3.247.181 |
| 220 | 10.3.247.182/31 | 10.3.247.182 – 10.3.247.183 | 10.3.247.183 |
| 221 | 10.3.247.184/31 | 10.3.247.184 – 10.3.247.185 | 10.3.247.185 |
| 222 | 10.3.247.186/31 | 10.3.247.186 – 10.3.247.187 | 10.3.247.187 |
| 223 | 10.3.247.188/31 | 10.3.247.188 – 10.3.247.189 | 10.3.247.189 |
| 224 | 10.3.247.190/31 | 10.3.247.190 – 10.3.247.191 | 10.3.247.191 |
| 225 | 10.3.247.192/31 | 10.3.247.192 – 10.3.247.193 | 10.3.247.193 |
| 226 | 10.3.247.194/31 | 10.3.247.194 – 10.3.247.195 | 10.3.247.195 |
| 227 | 10.3.247.196/31 | 10.3.247.196 – 10.3.247.197 | 10.3.247.197 |
| 228 | 10.3.247.198/31 | 10.3.247.198 – 10.3.247.199 | 10.3.247.199 |
| 229 | 10.3.247.200/31 | 10.3.247.200 – 10.3.247.201 | 10.3.247.201 |
| 230 | 10.3.247.202/31 | 10.3.247.202 – 10.3.247.203 | 10.3.247.203 |
| 231 | 10.3.247.204/31 | 10.3.247.204 – 10.3.247.205 | 10.3.247.205 |
| 232 | 10.3.247.206/31 | 10.3.247.206 – 10.3.247.207 | 10.3.247.207 |
| 233 | 10.3.247.208/31 | 10.3.247.208 – 10.3.247.209 | 10.3.247.209 |
| 234 | 10.3.247.210/31 | 10.3.247.210 – 10.3.247.211 | 10.3.247.211 |
| 235 | 10.3.247.212/31 | 10.3.247.212 – 10.3.247.213 | 10.3.247.213 |
| 236 | 10.3.247.214/31 | 10.3.247.214 – 10.3.247.215 | 10.3.247.215 |
| 237 | 10.3.247.216/31 | 10.3.247.216 – 10.3.247.217 | 10.3.247.217 |
| 238 | 10.3.247.218/31 | 10.3.247.218 – 10.3.247.219 | 10.3.247.219 |
| 239 | 10.3.247.220/31 | 10.3.247.220 – 10.3.247.221 | 10.3.247.221 |
| 240 | 10.3.247.222/31 | 10.3.247.222 – 10.3.247.223 | 10.3.247.223 |
| 241 | 10.3.247.224/31 | 10.3.247.224 – 10.3.247.225 | 10.3.247.225 |
| 242 | 10.3.247.226/31 | 10.3.247.226 – 10.3.247.227 | 10.3.247.227 |
| 243 | 10.3.247.228/31 | 10.3.247.228 – 10.3.247.229 | 10.3.247.229 |
| 244 | 10.3.247.230/31 | 10.3.247.230 – 10.3.247.231 | 10.3.247.231 |
| 245 | 10.3.247.232/31 | 10.3.247.232 – 10.3.247.233 | 10.3.247.233 |
| 246 | 10.3.247.234/31 | 10.3.247.234 – 10.3.247.235 | 10.3.247.235 |
| 247 | 10.3.247.236/31 | 10.3.247.236 – 10.3.247.237 | 10.3.247.237 |
| 248 | 10.3.247.238/31 | 10.3.247.238 – 10.3.247.239 | 10.3.247.239 |
| 249 | 10.3.247.240/31 | 10.3.247.240 – 10.3.247.241 | 10.3.247.241 |
| 250 | 10.3.247.242/31 | 10.3.247.242 – 10.3.247.243 | 10.3.247.243 |
| 251 | 10.3.247.244/31 | 10.3.247.244 – 10.3.247.245 | 10.3.247.245 |
| 252 | 10.3.247.246/31 | 10.3.247.246 – 10.3.247.247 | 10.3.247.247 |
| 253 | 10.3.247.248/31 | 10.3.247.248 – 10.3.247.249 | 10.3.247.249 |
| 254 | 10.3.247.250/31 | 10.3.247.250 – 10.3.247.251 | 10.3.247.251 |
| 255 | 10.3.247.252/31 | 10.3.247.252 – 10.3.247.253 | 10.3.247.253 |
| 256 | 10.3.247.254/31 | 10.3.247.254 – 10.3.247.255 | 10.3.247.255 |
01 / table
IPv4 CIDR prefix table.
Click a prefix longer than your network to split it into subnets.
| prefix | subnet mask | addresses | hosts | in your /23 |
|---|---|---|---|---|
| /0 | 0.0.0.0 | 4,294,967,296 | 4,294,967,294 | - |
| /1 | 128.0.0.0 | 2,147,483,648 | 2,147,483,646 | - |
| /2 | 192.0.0.0 | 1,073,741,824 | 1,073,741,822 | - |
| /3 | 224.0.0.0 | 536,870,912 | 536,870,910 | - |
| /4 | 240.0.0.0 | 268,435,456 | 268,435,454 | - |
| /5 | 248.0.0.0 | 134,217,728 | 134,217,726 | - |
| /6 | 252.0.0.0 | 67,108,864 | 67,108,862 | - |
| /7 | 254.0.0.0 | 33,554,432 | 33,554,430 | - |
| /8 | 255.0.0.0 | 16,777,216 | 16,777,214 | - |
| /9 | 255.128.0.0 | 8,388,608 | 8,388,606 | - |
| /10 | 255.192.0.0 | 4,194,304 | 4,194,302 | - |
| /11 | 255.224.0.0 | 2,097,152 | 2,097,150 | - |
| /12 | 255.240.0.0 | 1,048,576 | 1,048,574 | - |
| /13 | 255.248.0.0 | 524,288 | 524,286 | - |
| /14 | 255.252.0.0 | 262,144 | 262,142 | - |
| /15 | 255.254.0.0 | 131,072 | 131,070 | - |
| /16 | 255.255.0.0 | 65,536 | 65,534 | - |
| /17 | 255.255.128.0 | 32,768 | 32,766 | - |
| /18 | 255.255.192.0 | 16,384 | 16,382 | - |
| /19 | 255.255.224.0 | 8,192 | 8,190 | - |
| /20 | 255.255.240.0 | 4,096 | 4,094 | - |
| /21 | 255.255.248.0 | 2,048 | 2,046 | - |
| /22 | 255.255.252.0 | 1,024 | 1,022 | - |
| /23 | 255.255.254.0 | 512 | 510 | 1 |
| /24 | 255.255.255.0 | 256 | 254 | 2 split → |
| /25 | 255.255.255.128 | 128 | 126 | 4 split → |
| /26 | 255.255.255.192 | 64 | 62 | 8 split → |
| /27 | 255.255.255.224 | 32 | 30 | 16 split → |
| /28 | 255.255.255.240 | 16 | 14 | 32 split → |
| /29 | 255.255.255.248 | 8 | 6 | 64 split → |
| /30 | 255.255.255.252 | 4 | 2 | 128 split → |
| /31 | 255.255.255.254 | 2 | 2 | 256 split → |
| /32 | 255.255.255.255 | 1 | 1 | 512 split → |
02 / faq
About this calculator.
How do I use this subnet calculator?
▼
Type an IP address followed by a prefix, like 192.168.1.10/24, or by a subnet mask, like 192.168.1.10 255.255.255.0. Without a prefix it uses /24. Click a row in the table to split the network into smaller subnets.
Why are usable hosts always 2 fewer?
▼
The first address in a subnet is the network address and the last is the broadcast address, so neither can go to a device. The exceptions are /31 (point-to-point links, RFC 3021) and /32 (a single address), which use every address.
Can I use it from a terminal?
▼
Yes. curl 'ipku.in/en/tools/ipv4-subnet-calculator?q=192.168.1.10/24' returns the result as plain text.